1/**********************************************************************
2 * Author: Cavium, Inc.
3 *
4 * Contact: support@cavium.com
5 * Please include "LiquidIO" in the subject.
6 *
7 * Copyright (c) 2003-2016 Cavium, Inc.
8 *
9 * This file is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License, Version 2, as
11 * published by the Free Software Foundation.
12 *
13 * This file is distributed in the hope that it will be useful, but
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16 * NONINFRINGEMENT. See the GNU General Public License for more details.
17 ***********************************************************************/
18/*! \file cn66xx_device.h
19 * \brief Host Driver: Routines that perform CN66XX specific operations.
20 */
21
22#ifndef __CN66XX_DEVICE_H__
23#define __CN66XX_DEVICE_H__
24
25/* Register address and configuration for a CN6XXX devices.
26 * If device specific changes need to be made then add a struct to include
27 * device specific fields as shown in the commented section
28 */
29struct octeon_cn6xxx {
30 /** PCI interrupt summary register */
31 u8 __iomem *intr_sum_reg64;
32
33 /** PCI interrupt enable register */
34 u8 __iomem *intr_enb_reg64;
35
36 /** The PCI interrupt mask used by interrupt handler */
37 u64 intr_mask64;
38
39 struct octeon_config *conf;
40
41 /* Example additional fields - not used currently
42 * struct {
43 * }cn6xyz;
44 */
45
46 /* For the purpose of atomic access to interrupt enable reg */
47 spinlock_t lock_for_droq_int_enb_reg;
48
49};
50
51enum octeon_pcie_mps {
52 PCIE_MPS_DEFAULT = -1, /* Use the default setup by BIOS */
53 PCIE_MPS_128B = 0,
54 PCIE_MPS_256B = 1
55};
56
57enum octeon_pcie_mrrs {
58 PCIE_MRRS_DEFAULT = -1, /* Use the default setup by BIOS */
59 PCIE_MRRS_128B = 0,
60 PCIE_MRRS_256B = 1,
61 PCIE_MRRS_512B = 2,
62 PCIE_MRRS_1024B = 3,
63 PCIE_MRRS_2048B = 4,
64 PCIE_MRRS_4096B = 5
65};
66
67/* Common functions for 66xx and 68xx */
68int lio_cn6xxx_soft_reset(struct octeon_device *oct);
69void lio_cn6xxx_enable_error_reporting(struct octeon_device *oct);
70void lio_cn6xxx_setup_pcie_mps(struct octeon_device *oct,
71 enum octeon_pcie_mps mps);
72void lio_cn6xxx_setup_pcie_mrrs(struct octeon_device *oct,
73 enum octeon_pcie_mrrs mrrs);
74void lio_cn6xxx_setup_global_input_regs(struct octeon_device *oct);
75void lio_cn6xxx_setup_global_output_regs(struct octeon_device *oct);
76void lio_cn6xxx_setup_iq_regs(struct octeon_device *oct, u32 iq_no);
77void lio_cn6xxx_setup_oq_regs(struct octeon_device *oct, u32 oq_no);
78int lio_cn6xxx_enable_io_queues(struct octeon_device *oct);
79void lio_cn6xxx_disable_io_queues(struct octeon_device *oct);
80irqreturn_t lio_cn6xxx_process_interrupt_regs(void *dev);
81void lio_cn6xxx_bar1_idx_setup(struct octeon_device *oct, u64 core_addr,
82 u32 idx, int valid);
83void lio_cn6xxx_bar1_idx_write(struct octeon_device *oct, u32 idx, u32 mask);
84u32 lio_cn6xxx_bar1_idx_read(struct octeon_device *oct, u32 idx);
85u32
86lio_cn6xxx_update_read_index(struct octeon_instr_queue *iq);
87void lio_cn6xxx_enable_interrupt(struct octeon_device *oct, u8 unused);
88void lio_cn6xxx_disable_interrupt(struct octeon_device *oct, u8 unused);
89void cn6xxx_get_pcie_qlmport(struct octeon_device *oct);
90void lio_cn6xxx_setup_reg_address(struct octeon_device *oct, void *chip,
91 struct octeon_reg_list *reg_list);
92u32 lio_cn6xxx_coprocessor_clock(struct octeon_device *oct);
93u32 lio_cn6xxx_get_oq_ticks(struct octeon_device *oct, u32 time_intr_in_us);
94int lio_setup_cn66xx_octeon_device(struct octeon_device *oct);
95int lio_validate_cn6xxx_config_info(struct octeon_device *oct,
96 struct octeon_config *conf6xxx);
97
98#endif
99

source code of linux/drivers/net/ethernet/cavium/liquidio/cn66xx_device.h